Pick-block adjustment for knitting-machines.



B. M. GUNNINGI PICK BLOCK ADJ USTMENTIOR KNITTING MAGHINBS. APPLICATION FILED JUNE 4, 1914.

9 Patented Feb. 23, 1915;

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EUGENE M. GUNNING, OF PAWTUCKET, RHODE ISLAND, ASSIGNOR T0 HEMPHILL MANUFACTURING COMPANY, OF PAWTUCKET, RHODE ISLAND.

PICK-BLOCK ADJUSTMENT FOR HITTING-MACHINES.

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Specification of Letters Patent. Patg t d F b 23 1915 Application filed June 4, 1914. Serial No. 843,055.

To all whom it may concern tember 7, 1909, #983,443, though it will be understood that the invention is not confined to a machine of this particular construction.

The invention concerns particularly means for controlling the pick-block both automatically and manually, said means being adapted to permit the pick-block to be retracted by the hand of the operator, and

also operating automatically to retract the pick-block, together with the picks and the needle cams in order to effect transferring or for other purposes.

In the accompanying drawings, Figure 1 is a side view of a knitting head with my invention applied thereto. Fig. 2 1s a detail of one of the cams and a part of the automatic connection.

In these drawings l, indicates the needle cylinder, 2, the main table or plate supporting the knitting head, 3, the widening pick mechanism which is supported by the mam table or plate 2, and 4 indicates the narrowing pick mechanism or a part thereof, which is mounted on a block 5, which in turn is slidable on a plate H, as in ordinary practice. This block 5 also carries the needle cams, one of which is indicated at 6. The pick block is pressed toward the needle cylinder to properly locate the picks and the needle cams in relation thereto by a spring 7 interposed between the pick-block and a post 8, fixed to the guide 9 on which the pick-block is slidably mounted. For retracting the pick block against the pres sure of this spring a link 10 is pivotally secured at 11 to the front side of the base portion 5 of the pick-block, and this link is also pivotally connected at 12 to a lever 13 which is pivoted at 14, through the standard 15. This lever has an arm 16 connected by a link 17 to a lever 18 suitably pivoted at 19, and operated by a cam 20, on the shaft 8, which in the present form of my invention indicates the same shaft similarly marked in the I-Iemphill patent above referred to, this shaft being the one upon which the main pattern drum of the Banner machine is supported. The link 17 is made in two parts, the main portion being screw threaded and being threaded into the socket portion 17 The connection between the link and the lever 16 is detachable by removing the screw 16 so that nicety of ad- Justment may be secured by removing this screw 16, thus detaching the link 17 from the lever 16 and then by giving the link one or more turns it may be screwed farther into or out in respect to the socket portion thus shortening the connection or lengthening'it as may be desired to secure the proper adjustment of the pick block with its picks and needle cams to the needle cylinder and needles slidably mounted therein. The cam 20 is so disposed on the shaft of the cam drum that at the proper moment the connections described will be operated to retract the pick block to allow transferring of the loops to be accomplished. Should the 'operator at any time desire to retract the 'slidably mounted pick-block, narrowing picks and needle cams mounted thereon, and automatic connections for operating said pick-block with both the narrowing picks and needle cams toward and from the needle cylinder, substantially as described.

2. In combination with a knitting head, a slidably mounted pick-block, narrowing picks and needle cams mounted thereon, and automatic connections for operating said pick-block with its picks and needle cams toward and from the needle cylinder, said connections including a link pivotally connected to the front of the pick-block, a bell crank-lever to which such link is connected, an operating cam and the lever and link connections between said cam and the bellcrank lever, substantially as described.

3. In combination with a knitting head, a slidably mounted pick-block, narrowing picks and needle cams mounted thereon,

' and automatic connections for operating' said pick-block with its picks and needle cams toward and, from the needle cylinder, said connections including a link p1votally connected to the front of the pick block, a bell-crank lever to which such link is connected, an operating cam and the lever and link connection between said cam and the bell-crank lever, and a finger piece 10 on said bell-crank lever, for operating the said connections by hand at the will of the operator, substantially as described.

4. In combination with a knitting head, a slidably mounted pick block, narrowing 15 picks, and needle cams mounted on said 'taining block, and automatically operating connections for retracting said pick block with its EUGENE M. GUNNING.

Witnesses:

JOHN LAWSON, GEORGE P. BONWORTH. 

